tweedle Dee dies along with my multi meter!!

[norburybrook]

hmmm.

So I did some tube rolling on my tweedle dee today. Ended up with some USA sylvania 6L6's in there. Played them for an hour or so then put the back back on the amp and fired up...

there was a lovely light show came from the rectifier valve then it went off.

It had blown the 1.5a fuse so I changed that, I also swapped the GZ34 out as well just in case, but the amp is dead. no pilot light, heaters nothing. Unfortunately it seems my trusty multimeter has also stopped working today, it powers up fine LCD is bright and clear but it will not register any values.


So any suggestions as to 1: the amp 2: the multimeter and how i can test one without the other?


M

[norburybrook]

well my spider senses were tingling and I felt the fuse holder didn't feel quite right, so I took the valves out and jumpered it. We have life


So i think it's just the multimeter to solve now.



M

[xtian]

For the meter, new battery, and it will have a fuse inside for the current sensing circuit. I've blown a few of those...

[norburybrook]

For the meter, new battery, and it will have a fuse inside for the current sensing circuit. I've blown a few of those...

thanks, battery was first thing i did. Will check fuse

wasn't the fuses either.

cables? I don't have any other to check.


M

[pompeiisneaks]

if it looks like it's ready but not giving output, you could test the cables with a good known resistor and push the leads down into the holes to see if it reads there, just make sure the leads of the resistor touch the metal inside the base sockets in the multimeter? that could imply the leads are bad.

~Phil

[norburybrook]

if it looks like it's ready but not giving output, you could test the cables with a good known resistor and push the leads down into the holes to see if it reads there, just make sure the leads of the resistor touch the metal inside the base sockets in the multimeter? that could imply the leads are bad.

~Phil

thanks Phil, yes I've tried something similar, migth pull it apart again and attach leads to the connectors under the boards with it set to continuity to see if i can get it to beep.

Might as well order another one I think though as I'm not sure what's gone wrong with this. I realize how attached I am to this thing!!!!

M

[romberg]

I have a DMM that was acting up after 20 years or so of use. I took it apart and used a little deoxit on the rotary switch contacts. I think it will now be good for another 20 years. Might be worth a try.

Mike

[norburybrook]

I have a DMM that was acting up after 20 years or so of use. I took it apart and used a little deoxit on the rotary switch contacts. I think it will now be good for another 20 years. Might be worth a try.

Mike

thanks, i've ordered another one and the Tweedledee is now singing away nicely.


M

[Masco]

Try to avoid measuring voltage when the dial is set for current. Fluke Has that internal mA fuse that costs a fortune.